US4460900A - Device for mounting an antenna element on an antenna supporting spar - Google Patents

Device for mounting an antenna element on an antenna supporting spar Download PDF

Info

Publication number
US4460900A
US4460900A US06/302,071 US30207181A US4460900A US 4460900 A US4460900 A US 4460900A US 30207181 A US30207181 A US 30207181A US 4460900 A US4460900 A US 4460900A
Authority
US
United States
Prior art keywords
legs
base
antenna element
clamp
antenna
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/302,071
Other languages
English (en)
Inventor
Helmut Conrad
Reinhard Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Assigned to SCHMIDT, REINHARD, reassignment SCHMIDT, REINHARD, ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CONRAD, HELMUT
Application granted granted Critical
Publication of US4460900A publication Critical patent/US4460900A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/20—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening
    • F16B2/22—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material
    • F16B2/24—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material of metal
    • F16B2/241—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material of metal of sheet metal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element
    • H01Q1/1228—Supports; Mounting means for fastening a rigid aerial element on a boom

Definitions

  • the invention relates to a device for mounting a rod-like antenna element on an antenna supporting spar having a square or rectangular cross-section, which device is in general used for television and/or radio antennas, for amateur radio antennas and for Yagi antennas.
  • the invention is a device for mounting antenna elements on an antenna supporting spar which device comprises a U-shaped clamp of spring elastic material, which clamp is provided with two inclined portions at the free ends of its legs, such portions being inclined inwardly and directed to the base of the clamp.
  • Such inclined portions grip in the surface of the antenna supporting spar thereby fixing the position of such clamp relative to the antenna supporting spar.
  • the clamp is provided with two holes in its legs adjacent to the base of the clamp into which holes an antenna element can be inserted.
  • the base of the clamp is deformed in general in parallel to the legs and downwardly so that the deformed portion at least partially interrupts the linear connection of the holes when the clamp is not deformed, whereas the deformed portion of the base does not extend in the area of the linear connection of the two holes when the legs of the clamp are pushed together for a predetermined distance.
  • the legs To insert the antenna element into the holes of the clamp the legs have to be pushed together whereby the deformed portion of the base is moved upwardly and out of the area of the linear connection of the two holes so that the antenna element can be inserted and brought in any position desired in relation to the clamp.
  • the deformed portion of the base moves downwardly again and locks the antenna element in its position by contacting the antenna element and pressing it downwardly.
  • Such locking force is maintained when the clamp carrying the antenna element is mounted on the antenna supporting spar since during such mounting operation the legs will not be pressed together but additionally expanded so that the antenna element is held in its position during and after mounting of clamp on the antenna supporting spar.
  • the distance between the free ends of the inclined portions and the lower edges of the holes can be slightly smaller than the height of the antenna supporting spar.
  • the clamp consists of spring steel, e.g. stainless steel like X 12 CrNi 17 7, i.e. a steel comprising less than 0.15% C, less than 1.0% Si, less than 2.0% Mn, 17.0% Cr and 7.5% Ni.
  • spring steel e.g. stainless steel like X 12 CrNi 17 7, i.e. a steel comprising less than 0.15% C, less than 1.0% Si, less than 2.0% Mn, 17.0% Cr and 7.5% Ni.
  • Such steel will be brought in the shape of the clamp by cold forming and the spring properties are generated by heat-treatment of the clamp at 350° C.
  • FIG. 1 is a cross-section of a clamp according to the invention with an antenna element inserted.
  • FIG. 2 is a perspective view of a clamp according to the invention.
  • FIG. 3 is a cross-section of a clamp according to the invention mounted on an antenna supporting spar together with an antenna element.
  • FIG. 4 is a perspective view of a clamp according to the invention mounted on the antenna supporting spar with an antenna element inserted.
  • the clamp 1 shown in the figures is a U-shaped clamp, comprising a base 6 and two legs 2,3. At the free ends of the legs 2,3 inclined portions 4, 5 are provided which are bent inwardly and directed to the base 6. Adjacent to base 6 holes are provided in legs 2, 3, one of these holes 7 can be recognized in FIG. 2. Such holes are used for inserting a rod-like antenna element and therefore the dimensions of the holes are adapted to the dimensions of the antenna element.
  • base 6 of clamp 1 is deformed inwardly, i.e. it is bent in the direction of the free ends of legs 2,3 forming an indentation extending in parallel to such legs. However, such deformation may, for instance, consist of a corrogation with a remaining plane portion of the base.
  • Clamp 1 is formed in one piece and consists preferably of spring steel.
  • clamp 1 is used for holding a rod-like antenna element 10 which is inserted in the holes of legs 2, 3 with only one hole 7 shown in FIG. 2.
  • insertion cannot occur as long as the clamp is in a non-deformed stage as shown in FIG. 2 since the deformed portion of base 6 extends inwardly in direction of inclined portions 4,5 and in the area of the linear connection of the holes in the legs. If, therefore, antenna element 10 has been inserted in one of the holes the deformed portion of bases 6 will block insertion of the antenna element into the opposite hole.
  • legs 2,3 have to be pressed together for a certain distance thereby moving the linear connection of both holes out of the area of the deformed portion of base 6, so that the antenna element can be inserted into both holes.
  • legs 2,3 are released and the antenna element will be pressed against the lower edges of the holes and the deformed portion of bases 6 and will therefore be locked in its position (FIG. 1). Therefore the combination of clamp and antenna element can be transported to the location of final antenna assembly without any danger of change of position of the antenna element in relation to the clamp.
  • the opening formed by legs 2, 3 will be widened which results in an even tighter locking of the antenna element.
  • the legs opened up will then be pushed onto the antenna supporting spar 11, so that in the final position the inclined portions 4, 5 will rest against the lower surface of antenna supporting spar 11 as shown in FIG. 3.
  • the inclined portions 4,5 Since the distance between the lower surface of antenna element 10 and the free ends of inclined portions 4,5 is preferably slightly smaller than the height of antenna supporting spar 11 the inclined portions 4,5 will be elastically deformed and will thereby draw downwardly clamp 1 including antenna element 10 against the antenna supporting spar. Further, the inclined portion 4, 5 are pressed against or into the lower surface of the antenna supporting spar 11. Therefore, a safe and reliable connection between clamp 1 and antenna supporting spar 11 is obtained without any additional fastening means, e.g. screws.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Support Of Aerials (AREA)
  • Aerials With Secondary Devices (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
US06/302,071 1980-09-23 1981-09-14 Device for mounting an antenna element on an antenna supporting spar Expired - Fee Related US4460900A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803035818 DE3035818A1 (de) 1980-09-23 1980-09-23 Elementhalter fuer antennen
DE3035818 1980-09-23

Publications (1)

Publication Number Publication Date
US4460900A true US4460900A (en) 1984-07-17

Family

ID=6112632

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/302,071 Expired - Fee Related US4460900A (en) 1980-09-23 1981-09-14 Device for mounting an antenna element on an antenna supporting spar

Country Status (5)

Country Link
US (1) US4460900A (enExample)
EP (1) EP0048387B1 (enExample)
JP (1) JPS57107603A (enExample)
AT (1) ATE12855T1 (enExample)
DE (2) DE3035818A1 (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999014507A1 (en) * 1997-09-12 1999-03-25 Triax A/S A method for fixing one or several elements to a hollow profile, and an antenna comprising one or several booms having a square cross section
WO2001063691A1 (de) * 2000-02-23 2001-08-30 Robert Bosch Gmbh Halterung für ein focussierendes bauteil
WO2003017379A3 (en) * 2001-08-15 2003-12-18 Powerlight Corp Fixed angle solar collector arrangement
IT201800005684A1 (it) * 2018-05-24 2019-11-24 Componente di antenna

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5904308B2 (ja) 2014-03-04 2016-04-13 株式会社明電舎 電極材料の製造方法
EP3106534B1 (en) 2014-03-04 2019-08-07 Meidensha Corporation Alloy comprising copper and chromium
US9322169B2 (en) * 2014-07-18 2016-04-26 Facebook, Inc. Strut hanger
CN108386424B (zh) * 2018-03-19 2020-07-31 杨立杰 快装卡爪机构及卡接座总成
CN112038998B (zh) * 2020-08-25 2022-05-06 安徽送变电工程有限公司 扣合牢固的电缆吊架

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB829412A (en) * 1956-07-05 1960-03-02 Belling & Lee Improvements in aerials
FR1362625A (fr) * 1963-04-24 1964-06-05 Sefara Collecteur d'ondes à deux antennes conjuguées pour la réception de bandes extrêmes de fréquences
FR2108769A7 (enExample) * 1970-10-02 1972-05-26 Portenseigne Ets Marcel
FR2124091A1 (enExample) * 1971-02-04 1972-09-22 Portenseigne Ets Marcel
DE2065276A1 (de) * 1970-02-26 1973-01-25 Kathrein Werke Kg Laengsstrahlende antenne mit einem laengstraeger und darauf angeordneten antennenelementen
DE1303879B (enExample) * 1967-09-27 1973-12-13
GB1343651A (en) * 1971-10-30 1974-01-16 Dingley P Clips
DD107174A1 (enExample) * 1973-09-21 1974-07-12

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB829412A (en) * 1956-07-05 1960-03-02 Belling & Lee Improvements in aerials
FR1362625A (fr) * 1963-04-24 1964-06-05 Sefara Collecteur d'ondes à deux antennes conjuguées pour la réception de bandes extrêmes de fréquences
DE1303879B (enExample) * 1967-09-27 1973-12-13
DE2065276A1 (de) * 1970-02-26 1973-01-25 Kathrein Werke Kg Laengsstrahlende antenne mit einem laengstraeger und darauf angeordneten antennenelementen
FR2108769A7 (enExample) * 1970-10-02 1972-05-26 Portenseigne Ets Marcel
FR2124091A1 (enExample) * 1971-02-04 1972-09-22 Portenseigne Ets Marcel
GB1343651A (en) * 1971-10-30 1974-01-16 Dingley P Clips
DD107174A1 (enExample) * 1973-09-21 1974-07-12

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999014507A1 (en) * 1997-09-12 1999-03-25 Triax A/S A method for fixing one or several elements to a hollow profile, and an antenna comprising one or several booms having a square cross section
WO2001063691A1 (de) * 2000-02-23 2001-08-30 Robert Bosch Gmbh Halterung für ein focussierendes bauteil
US20030142025A1 (en) * 2000-02-23 2003-07-31 Bernhard Lucas Fixing element for a focusing component
US7164390B2 (en) 2000-02-23 2007-01-16 Robert Bosch Gmbh Support for a focusing component
WO2003017379A3 (en) * 2001-08-15 2003-12-18 Powerlight Corp Fixed angle solar collector arrangement
IT201800005684A1 (it) * 2018-05-24 2019-11-24 Componente di antenna

Also Published As

Publication number Publication date
JPS6362122B2 (enExample) 1988-12-01
EP0048387A1 (de) 1982-03-31
DE3035818A1 (de) 1982-05-27
DE3169995D1 (en) 1985-05-23
ATE12855T1 (de) 1985-05-15
EP0048387B1 (de) 1985-04-17
JPS57107603A (en) 1982-07-05

Similar Documents

Publication Publication Date Title
US3995823A (en) Adjustable ceiling suspension
US6398170B1 (en) Wire harness fixing clip
US5274888A (en) Adjustable U-bolt type pipe clamp
US7226260B2 (en) Sheet metal fastening clip
JP7005623B2 (ja) 吊り下げアセンブリ
US4460900A (en) Device for mounting an antenna element on an antenna supporting spar
US4753301A (en) Well perforating gun assembly
US4068332A (en) Bed locking insert plates
US5263665A (en) Mounting bracket for holding a heat insulating mat, especially in an aircraft
GB2044878A (en) Blind assembly of captive bolt to panel
KR100245545B1 (ko) 안내판걸이구조
CA2056826C (en) Mounting plate
US2964280A (en) Curtain rod supporting bracket
US5036567A (en) Push-in fastener clip
US4239414A (en) Bracket for attaching rails to steel fence posts
US5313370A (en) Component carrier for insertable circuit boards
EP0165621B1 (en) Locking clamp for fastening devices
EP0403103A1 (en) Mounting assembly
US3934711A (en) Keeper for idler rolls
US2863195A (en) Fastener
US4462710A (en) Mounting device for a nut to be provided on a metal plate
US3667572A (en) Tread supporting assembly
EP0840060A2 (en) Reversible snap fixing device for a lighting apparatus to be encased in a support panel such as a false ceiling
US4112571A (en) Keeper for idler rolls
USH968H (en) Self locking loop clamp

Legal Events

Date Code Title Description
AS Assignment

Owner name: SCHMIDT, REINHARD, W. GERMANY, HEIDACKER 52 2000 H

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CONRAD, HELMUT;REEL/FRAME:004244/0308

Effective date: 19840301

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY

FPAY Fee payment

Year of fee payment: 4

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY

Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY

FPAY Fee payment

Year of fee payment: 8

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Lapsed due to failure to pay maintenance fee

Effective date: 19960717

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362